Antenna-integrated base station apparatus and antenna fixing equipment of mobile communication network

ABSTRACT

A base station apparatus of an antenna-integrated type for use in a mobile communication network, includes an enclosure configured to have electric and electronic devices for processing signals in receipt and to form at least a part of an exterior of the base station, and an antenna configured to be installed so as to be tiltable on one surface of the enclosure, to have an outer contour defined by a radome, to include at least one radiating element for transmitting and receiving a radio signal, and an enclosure fixing device configured to fixedly mount the enclosure to an external support, and an antenna fixing apparatus configured to fixedly install the antenna on the enclosure so that the antenna is adjustably tilted with respect to the enclosure.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Divisional Application of U.S. application Ser.No. 16/039,344, filed on Jul. 19, 2018 (now pending), which is aContinuation of International Application No. PCT/KR2017/000644, filedon Jan. 19, 2017, which claims the benefit of and priority to KoreanPatent Application No. 10-2016-0008310, filed on Jan. 22, 2016, thecontent of which are herein incorporated by reference in their entirety.

TECHNICAL FIELD

The present disclosure in some embodiments relates to a base stationapparatus or a repeater apparatus (hereinafter collectively referred toas “base station apparatus”) in a mobile communication such as a CDMA,GSM, third generation (3G), LTE or such network. More particularly, thepresent disclosure relates to an antenna-integrated base stationapparatus and an antenna fixing apparatus.

BACKGROUND

A base station of a mobile communication system has been generallydivided into a base station apparatus including various electric andelectronic devices for processing transmit and receive signals, and anantenna apparatus for transmitting and receiving radio signals with atleast one radiating element. The antenna apparatus is installed at ahigh position such as a building roof, a tower or a support column, andthe base station apparatus is usually installed at a low position on theground. The antenna and base station apparatuses may be connected in anarrangement to transmit and receive wireless signals and/or controlsignals to and from each other.

Recent downsizing and weight reduction achievements of the respectiveapparatuses for wireless signal processing have eased their towerinstallations, encouraging the provision of base station apparatuseswith antenna built-in. At this time, the relevant antenna-integratedbase station apparatus can be installed in its entirety on an outsidesupport column of a building or the like. These antenna-integrated basestation apparatuses can maximize utilization of space as a whole, andminimize losses due to the feeder cable for interconnecting between thebase station apparatus and the antenna as commonly practiced in the art.

Meanwhile, an antenna (or an antenna-integrated base station apparatus)is typically installed on a support column or the like by aninstallation structure which can reposition and fix the antenna so as tohave its posture tilted with an appropriate inclination for properlydirecting the antenna to the ground (that is, towards a service user onthe ground). Such a structure is implemented by a bracket structureand/or a clamp structure for fixedly fastening the antenna to thesupport column. For example, a support bracket fixed to the supportcolumn is formed with a vertically arcuate guide hole (i.e., a slotformation), while an antenna bracket or the like is fastened by a boltcoupling structure for positional fixation, which is fixedly disposed inthe relevant guide hole in a proper position. A prior art example ofsuch antenna installation method is Korean Unexamined Publication No.1020030069260 filed by LG Electronics Inc., titled Antenna System for AMobile Communication Station, invented by KIM, Dae Su and AHN, Hong Jin,and published on Aug. 27, 2003.

In this manner, the installation structure of the antenna allows anoperator to not only adjust the posture of the antenna as appropriate atthe time of the initial installation, but also reposition it thereafterand when the radio wave environment changes.

DISCLOSURE Technical Problem

However, installing the antenna by such method as disclosed in theaforementioned Korean Unexamined Publication No. 1020030069260 requiresan operator first to adjust and hold the antenna posture at a desiredinclination angle until the fixing bolt is fastened, troubling theoperator of using the human power to hold the posture of the antennathroughout the bolt fastening procedure. In addition, during theoperation of fastening the fixing bolt by the operator, the antenna tiltoften deviates from the desired angle due to the rotational friction ofthe bolt, compelling the operator to perform the same operation againand again.

In addition, when installing the antenna-integrated base stationapparatus, the size and weight of the fixing component for installingthe base station apparatus proportionally add to the apparatus' own sizeand weight, worsening the difficulty of the installation work.

Further, it is typical that the antenna (and the antenna-integrated basestation apparatus) be installed at a high position such as on a roof oran exterior wall of a building, a street lamp, in a spire, etc., whichrequires an operator to use a crane or a rope for work-at-height toperform, further elevating the difficulty level of the same work done onthe ground. Particularly, the operator utilizing work tools may causecasualties and damage to property from being struck with inadvertentlydropped tools.

On the other hand, an antenna-integrated base station apparatus may beequipped with a global positioning system (GPS) device. In principle, tooptimize the performance of the built-in GPS antenna, the GPS device isinstalled externally of the base station apparatus so as to have anupright posture facing towards the sky.

When tilting and installing an antenna-integrated base station apparatusequipped with such a GPS device, the installation angle of the GPSdevice tends to deviate from the optimum position. Accordingly, there isa need for an arrangement for installing an antenna-integrated basestation apparatus, taking account of the installation angle of GPSequipment.

In consideration of the above issues, the present disclosure in at leastsome embodiments aims to provide an antenna-integrated base stationapparatus and an antenna fixing apparatus, which enhance theinstallability and work time reduction.

Further, the present disclosure in at least some embodiments aims toprovide an antenna-integrated base station apparatus and an antennafixing apparatus with self-adjustment to their own optimum installationangles, while allowing a GPS device to be installed in its optimallyangled position.

Summary

According to some aspects of the present disclosure, a base stationapparatus of an antenna-integrated type for use in a mobilecommunication network, includes an enclosure, an antenna, an enclosurefixing device, an enclosure and an antenna fixing apparatus. Theenclosure is configured to have electric and electronic devices forprocessing signals in receipt and to form at least a part of an exteriorof the base station. The antenna is configured to be installed so as tobe tiltable on one surface of the enclosure, to have an outer contourdefined by a radome, to include at least one radiating element fortransmitting and receiving a radio signal. The enclosure fixing deviceis configured to fixedly mount the enclosure to an external support. Theantenna fixing apparatus is configured to fixedly install the antenna onthe enclosure so that the antenna is adjustably tilted with respect tothe enclosure.

The antenna fixing apparatus may include a dial knob configured to beinstalled externally of the radome, a gear structure configured to makea helical or rotational movement in response to a rotation of the dialknob, a linear movement mechanism configured to linearly move inengagement with the gear structure, and a linkage mechanism configuredto secure the linear movement mechanism to the enclosure.

The antenna fixing apparatus may include a dial knob configured to beinstalled externally of the radome, a rotating rod configured to turn inresponse to a rotation of the dial knob, and to be formed with a geararrangement, a movable block configured to have a gear structure thatmeshes with the gear arrangement of the rotating rod, and to linearlymove in a sliding manner when the rotating rod turns, and a linkagemechanism configured to establish a linkage between the movable blockand at least one hinge member that is fixedly mounted to one side of theenclosure.

The dial knob may be installed at an upper middle portion of the radome.The rotating rod may be formed with a screw gear arrangement. Themovable block may have a gear structure in the form of a nut that mesheswith the screw gear arrangement.

The dial knob may be installed on a lateral side of the radome. Therotating rod may be formed with a rotating gear structure. The movableblock may have a linear gear structure in mesh with the rotating gearstructure.

The linkage mechanism may include a link configured to interlink betweenat least one upper hinge member that is fixed to an upper portion of theenclosure and the movable block. Pivotable joints may be formed by linkpins between the link and the upper hinge member of the enclosure, andbetween the link and the movable block, respectively. The enclosure maybe formed, at a front lower portion, with at least one lower hingemember. The radome may be correspondingly formed with a hinge member forhinged connection with the at least one lower hinge member.

According to some other aspects of the present disclosure, an antennafixing apparatus of base station in a mobile communication network,includes a dial knob, a rotating rod, a movable block and a linkagemechanism. The dial knob is configured to be installed externally of aradome of an antenna. The rotating rod is configured to turn in responseto a rotation of the dial knob, and to be formed with a geararrangement. The movable block is configured to have a gear structurethat meshes with the gear arrangement of the rotating rod, and tolinearly move in a sliding manner when the rotating rod turns. Thelinkage mechanism is configured to establish a linkage between themovable block and at least one hinge member formed on a bracket forinstalling the antenna on an external support.

The at least one hinge member of the bracket may include an upper hingemember formed on a first upper bracket that is subordinate to thebracket, and a lower hinge member formed on a second lower bracket thatis subordinate to the bracket. The linkage mechanism may include a linkthat interconnects between the upper hinge member of the bracket and themovable block. Pivotable joints may be formed by link pins between thelink and the upper hinge member of the bracket, and between the link andthe movable block, respectively. The radome may be correspondinglyformed with a hinge member for hinged connection with the at least onelower hinge member of the second lower bracket.

Advantageous Effects

As described above, the antenna-integrated base station apparatus of themobile communication network, and the antenna fixing apparatus thereforaccording to some embodiments of the present disclosure are structuredto maintain the state in which the base station apparatus stands uprightin the vertical direction, and to render the antenna to be exclusivelyangularly adjustable, and thereby enhance the installability and worktime reduction. Moreover, this obviates the need for the installer touse a separate tool for adjusting the installation angle, improves theconvenience of the angle adjustment operation while shortening theoperation time, and provides more accurate angular adjustments.

Further, the ability to install the base station apparatus in an uprightposture allows a GPS device to be installed in its optimally angledposition, and at the same time, permits an independent adjustment of theinstallation angle of the antenna into the optimum installation angle.

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments of the present disclosure will now be described indetail with reference to the accompanying drawings.

FIGS. 1A to 1F are external structural views of an antenna-integratedbase station apparatus of a mobile communication network, according to afirst embodiment of the present disclosure.

FIGS. 2A and 2B are perspective views of the installed state of theantenna-integrated base station apparatus shown in FIGS. 1A to 1F.

FIG. 3A is a cross-sectional view along line A-A′ shown in FIG. 1B, andFIG. 3B is an enlarged view of portion B of FIG. 3A.

FIG. 4 is a perspective view of the antenna alone shown in FIG. 3A.

FIG. 5 is a perspective view showing just the enclosure of the basestation apparatus of FIGS. 1A to 1F, and the antenna fixing apparatuscapable of adjusting the installation angle.

FIG. 6 is an enlarged perspective view of the antenna fixing apparatusof FIG. 5.

FIG. 7 is an external perspective view of an antenna-integrated basestation apparatus of a mobile communication network, according to asecond embodiment of the present disclosure.

FIG. 8 is an enlarged perspective view of the antenna fixing apparatusof FIG. 7.

FIG. 9 is a perspective view of an antenna fixing apparatus of a basestation in a mobile communication network, according to a thirdembodiment of the present disclosure.

DETAILED DESCRIPTION

In the following description, specific expressions are presented withparticular details such as specific structural elements, but they areprovided to aid in a more general understanding of the presentdisclosure, and it will be obvious to one of ordinary skill in the artthat these specific matters can be subject to certain modifications orchanges within the range of the present disclosure.

FIGS. 1A to 1F are external structural views of an antenna-integratedbase station apparatus of a mobile communication network, according to afirst embodiment of the present disclosure, wherein FIG. 1A is aperspective view of one side thereof, FIG. 1B a front view, and FIG. 1Ca side view, FIG. 1D a rear view, FIG. 1E a top view, and FIG. 1F abottom view.

Referring to FIGS. 1A to 1F, the antenna-integrated base stationapparatus according to the first embodiment of the present disclosureincludes an enclosure 10 and an antenna 20. The enclosure 10 housesvarious electrical and electronic devices for processing signals inreceipt, and it forms at least a part of the exterior of the relevantbase station apparatus. The antenna 20 is tiltably fixed on one surface(i.e., the front surface) of the enclosure 10, and it is equipped withat least one radiating element housed therein for transmitting andreceiving radio signals.

On its front and rear exterior surfaces, the enclosure 10 may formedintegrally with a plurality of radiation fins 101 for heat emission.Further, on the rear surface of the enclosure 10, an enclosure fixingdevice 12 such as a bracket is installed to fixedly mount the enclosure10 on a support (not shown) such as an external support column. Theenclosure fixing device 12 may have a simple structure in which theenclosure 10 is installed, for example, in an upright posture so as tobe fixed without inclination. On the upper surface of the enclosure 10,a GPS device 14 may be mounted so that it is fixedly installed uprighton top without inclination.

The antenna 20 may be provided therein with at least one radiatingelement (not shown), and it may have its outer contour defined by aradome 202 forming the outer contour of the antenna 20. The radiatingelement provided in the radome 20 may be, for example, a patch typeradiating element implemented in a PCB structure for miniaturizationthereof, although a dipole type or other various types of radiatingelements may be also provided. A dipole type radiating element wouldhave the installation space extended thicknesswise corresponding to theheight of the radiating element, which needs to be reflected indetermining the thickness of the radome 202 at the corresponding portionfor accommodating the radiating element.

Meanwhile, the enclosure 10 (thus the electronic devices inside) and theantenna 20 (with the radiating elements inside) may be interconnected byan appropriate connector (e.g., at 244 in FIG. 4) and a cable (e.g., at242 in FIG. 4).

Further, on the rear face of the radome 202 of the antenna 20, anantenna fixing apparatus 22 is provided for installing the radome 202 soas to be fixed while being tiltable from the front face of the enclosure10. The antenna fixing apparatus 22 has a dial knob 220 which receives arotation operation of an installer, and a mechanism (not shown) forchanging the angle of the tilt of the radome 202 (as a result, the tiltof the antenna) by pivoting the radome 202 in response to a rotation ofthe dial knob 220 about an axis while otherwise holding the radome 202in place. Such mechanism may be implemented by such structures as a gearstructure that makes helical or rotational movement in response to therotation of the dial knob 220, a linear movement mechanism that linearlymoves in engagement with the gear structure, and a linkage mechanism forsecuring the linear movement mechanism to the enclosure 10.

FIGS. 2A and 2B are perspective views of the installed state of theantenna-integrated base station apparatus shown in FIGS. 1A to 1F. FIG.2A shows the initially installed state of the apparatus, and FIG. 2Bshows the state of installation after an installer operated the antennafixing apparatus 22. As shown in FIG. 2A, the enclosure 10 of the basestation apparatus may be fixedly installed on a support column 1 by theenclosure fixing device 12. At this time, when the installer rotates thedial knob 220 of the antenna fixing apparatus 22 as shown by therotational arrow in FIG. 2B, the antenna 20 is inclined by an angle (θ)corresponding to the rotational operation of the dial knob 220, whilethe enclosure 10 remains fixed.

As structured in the above description, according to the presentdisclosure, the base station apparatus and the GPS device 14 installedin the base station apparatus can remain standing upright, while theantenna 20 alone can be separately adjusted angularly. Further, theinstaller needs no special tool or support for the base stationapparatus for making adjustments to the installation angle of theantenna 20, which is performed by operating the dial knob 220 of theantenna fixing apparatus 22.

At this time, the maximum rotatable angle of the antenna 20 by theantenna fixing apparatus 22 can be realized at, for example, about 5 to15 degrees.

FIG. 3A is a cross-sectional view along line A-A′ shown in FIG. 1B, andFIG. 3B is an enlarged view of portion B of FIG. 3A. FIG. 4 is aperspective view of the antenna alone shown in FIG. 3A. For conveniencein describing the embodiments, FIGS. 3A to 4 omit various devices whichcan be installed inside the enclosure, and radiating elements and thelike provided inside the antenna. FIG. 5 is a perspective view showingjust the enclosure of the base station apparatus of FIGS. 1A to 1F, andthe antenna fixing apparatus capable of adjusting the installationangle. FIG. 6 is an enlarged perspective view of the antenna fixingapparatus of FIG. 5. On the other hand, the enclosure 10 as in FIG. 5shows a state in which the GPS device 14 has been removed (not yetattached), yet illustrating a connector 140 which is installed on theupper side of the enclosure 10 for mounting the GPS device 14.Hereinafter, with reference to FIGS. 3A to 6, the structure of theantenna fixing apparatus 22 will be described in more detail.

The antenna fixing apparatus 22 may include the dial knob 220 installedfor operation by an installer at an appropriate position outside theradome 202, for example, in the middle of the upper surface of theradome 202, and a rotating rod 222 that is rotated in response to therotation of the dial knob 220 and is formed with, for example, a screwgear arrangement. The dial knob 220 and the rotating rod 222 may besupportedly mounted to be rotatable by mountings 203-1 and 203-2 eachformed in a proper shape on the rear side of the radome 202. Here, thedial knob 220 and/or the mounting 203-1 where the dial knob 220 isinstalled may be both formed or printed with appropriate scale marks orother various forms of signs for the installer to recognize the rotationamount of the dial knob 220 more easily.

Further, the antenna fixing apparatus 22 includes a movable block 223,having a gear structure in the form of a nut that meshes with the screwgear arrangement of the rotating rod 222, to linearly move in a slidingmanner when the rotating rod 222 turns. The antenna fixing apparatus 22also includes a linkage mechanism that establishes a linkage between themovable block 223 and, for example, a couple of upper hinge members102-1, 102-2 fixedly mounted to proper upper portions in the front ofthe enclosure 10. The screw gear arrangement of the rotating rod 222 isformed with a male thread having a constant pitch, while the movableblock 223 has a female thread with a pitch value corresponding to thatof the screw gear arrangement. The pitch value of the screw geararrangement of the rotating rod 222 and the corresponding pitch value ofthe female thread of the movable block 223, are appropriately set so asto have coarser threads than the ordinary gear structure, in order tominimize the influence of foreign matter such as dust while allowing asmooth movement of the movable block 223 by the rotation of the screwgear.

The linkage mechanism is mainly composed of a link 224 of an appropriateshape for interlinking between the upper hinge members 102-1, 102-2 ofthe enclosure 10 and the movable block 223. Pivotable joints are formedby link pins 230-1, 230-2, 225 between the link 224 and the upper hingemembers 102-1, 102-2 of the enclosure 10, and between the link 224 andthe movable block 223, respectively.

Meanwhile, the enclosure 10 is formed, at its appropriate front lowerportions, with lower hinge members (reference numerals 103-1 and 103-2in FIG. 5), while the radome 202 is formed with hinge members (referencenumeral 211-1 in FIG. 4) for hinged connection with the lower hingemembers 103-1, 103-2 at their corresponding positions. The lower hingemembers 103-1, 103-2 of the enclosure 10 and the hinge members 211-1 ofthe radome 202 are pivotally interconnected by link pins 231-1, 231-2.

As to the principle of the angular adjustment of the antenna 20 by theantenna fixing apparatus 22 having the above-described configuration,the dial knob 220 is operated to turn the rotating rod 222, whereby themovable block 223 moves up and down. With the movable block 223 beingconnected by the link 224 to the upper side of the enclosure 10, and thelower side of the enclosure 10 being in hinged connection with the lowerside of the antenna 20, the upward and downward movements of the movableblock 223 cause the antenna 20 to pivot as a whole about the hingeconnection between the enclosure 10 and the antenna 20. In other words,the distance between the upper side of the antenna 20 and the enclosure10 is increased or decreased.

FIG. 7 is an external perspective view of an antenna-integrated basestation apparatus of a mobile communication network, according to asecond embodiment of the present disclosure. FIG. 8 is an enlargedperspective view of the antenna fixing apparatus of FIG. 7. In FIGS. 7and 8, the antenna 20 is shown as being transparent for convenience ofexplanation, and FIG. 7 shows only a substantial part of the antennafixing apparatus. As shown in FIGS. 7 and 8, the antenna-integrated basestation apparatus according to the second embodiment of the presentdisclosure may include an enclosure 10 and an antenna 20 having almostthe same structures as those of the first embodiment disclosed in theprevious drawings. The basic difference from the first embodiment is, asshown in FIGS. 7 and 8, that an antenna fixing apparatus 25 for fixingthe antenna 20 to the enclosure 10 is structured to have a dial knob 250attached to a lateral side of the radome 202.

More specifically, the antenna fixing apparatus 25 according to thesecond embodiment of the present disclosure includes a dial knob 250installed on the upper portion of one outer side of the radome 202, arotating rod 251, and a movable block 253. The rotating rod 251 isrotated by the rotation of the knob 250 and is formed with, for example,with a rotating gear structure 252. The movable block 253, which has alinear gear structure in mesh with the rotating gear structure 252 ofthe rotating rod 251, moves linearly in a sliding manner when therotating rod 251 turns. In other words, the gear coupling between therotating gear structure 252 of the rotating rod 251 and the movableblock 253 corresponds to the rack and pinion gear structure. As in thefirst embodiment, the movable block 253 is connected to the enclosure 10via a linkage mechanism including a link 254.

The principle of angular adjustment of the antenna 20 by the antennafixing apparatus 25 according to the second embodiment of the presentdisclosure is the same as in the first embodiment, which is to operatethe dial knob 250 for turning the rotating rod 251 and accordingly movethe movable block 253 up and down.

The configuration and operation of the antenna-integrated base stationapparatus according to embodiments of the present disclosure can beimplemented as described above, but on the other hand, besides the abovedescription of the present disclosure presented with specific examples,variations thereof can be made without departing from the scope of thepresent disclosure. For example, in the above-described embodiments, thedial knob of the antenna fixing apparatus is installed on the upper sideor the lateral side of the radome, although a structure is alsoenvisioned that the dial knob is installed on the lower side of theradome.

Further, in the above description, it is mentioned that the maximumrotation angle of the antenna 20 by the antenna fixing apparatus 22 isabout 5 to 15 degrees, although the rotation angle of the antenna can beimplemented in a wide range beyond 15 degrees. Although the abovedescription is directed to the structure in which the antenna is tiltedtowards the ground, the present disclosure in yet another embodimentenvisions the antenna tilting towards the sky.

In the above description, the antenna fixing apparatus according to theembodiments of the present disclosure is applied to theantenna-integrated base station apparatus. However, in yet anotherembodiment of the present disclosure, the antenna fixing apparatus canbe also installed on an antenna that is mounted separately from the basestation apparatus. For example, independent of base station apparatusesfor ground level installation, antennas to be mounted on the supportstands such as support columns may be installed with mounting bracketswhich can be appropriately structured to incorporate the antenna fixingapparatus. Specifically, the bracket may be structured in part to becoupled with the support column, while it is structured in part (e.g.,as a first upper side sub-bracket that is subordinate to the bracket)similar to the upper hinge members 102-1, 102-2 as shown in FIG. 5 to beconnected with the linkage structure of the antenna fixing apparatus. Inaddition, the bracket may be structured in part to be coupled with thesupport column, while it is structured in part (e.g., as a second lowerside sub-bracket) similar to the lower hinge members 103-1, 103-2 asshown in FIG. 5 to be in hinged connection with the hinge members of theradome of the antenna. Through the bracket having such a structure andthe antenna fixing apparatus, the antenna can be installed on thesupport column separately from the base station apparatus. The remainderof the configuration of the antenna fixing apparatus may be similar tothe structure of the first or second embodiment.

FIG. 9 is a perspective view of an antenna fixing apparatus of a basestation in a mobile communication network, according to a thirdembodiment of the present disclosure, illustrating an example antennafixing apparatus that can be installed in an antenna 21 to be mounted ona support column 1 separately from a base station apparatus for groundlevel installation. FIG. 9 depicts the antenna 21 by dotted lines forconvenience of explanation, with the antenna 21 detached from a bracket16/18 on the support column 1.

Referring to FIG. 9, the antenna fixing apparatus according to the thirdembodiment of the present disclosure includes a dial knob 270, arotating rod 272, a movable block 273 and a linkage mechanism 274. Thedial knob 270 is installed externally of a radome 212 of the antenna 2.The rotating rod 272 turns in response to the rotation of the dial knob270 and is formed with, for example, a gear arrangement. The movableblock 273 has a gear structure that meshes with the gear arrangement ofthe rotating rod 272, and linearly moves in a sliding manner when therotating rod 272 turns. The linkage mechanism 274 establishes a linkagebetween the movable block 273 and at least one hinge member formed on abracket (e.g., a first sub-bracket 16) for installing the antenna 21 ona support such as the external support column 1.

The bracket for mounting the antenna 21 on the support column 1 may beimplemented as two separate brackets including a first sub-bracket 16located on the upper side, and a second sub-bracket 18 located on thelower side. The first sub-bracket 16 has upper hinge members 142-1 and142-2, while the second sub-bracket 18 has lower hinge members 152-1 and152-2. The upper hinge members 142-1, 142-2 of the first sub-bracket 16are structured to be hinged to the linkage mechanism 272. In addition,the lower hinge members 152-1, 152-2 of the second sub-bracket 18 arehinged to hinge members 213-1, 213-2 formed on the radome 212 of theantenna 21.

Through the antenna fixing apparatus having the structure according tothe third embodiment of the present disclosure shown in FIG. 9, theinstaller operates only the dial knob 270 of the antenna fixingapparatus, and thereby adjusts the installation angle of the antenna 21.

On the other hand, similar to the structure of the first embodiment ofthe present disclosure shown in FIGS. 2A to 6, the antenna fixingapparatus of the third embodiment of the present disclosure shown inFIG. 9 is installed on the upper surface of the antenna 21. In yetanother embodiment of the present disclosure, the antenna fixingapparatus may be also structured to be installed on a lateral side ofthe antenna radome similar to the structure of the second embodimentshown in FIGS. 7 and 8. Such a structure may have the dial knobinstalled on the lateral side of the radome 212, the rotating rodprovided with a rotating gear structure, and the movable block fittedwith a linear gear structure that meshes with the rotating gearstructure.

As described above, there are various modifications and changesavailable to the present disclosure, and therefore, the scope of thepresent disclosure is not defined by the embodiments described, but bythe claims and the equivalence of the claims.

What is claimed is:
 1. An antenna fixing apparatus of base station in a mobile communication network, the antenna fixing apparatus comprising: a dial knob which is installed outside a radome of an antenna; a rotating rod configured to rotate in response to a rotation of the dial knob, and to be formed with a gear arrangement; a movable block which has a gear structure that meshes with the gear arrangement of the rotating rod, and linearly moves in a sliding manner when the rotating rod turns; and a linkage mechanism which establishes a linkage between the movable block and at least one hinge member formed on a bracket for installing the antenna on an external support.
 2. The antenna fixing apparatus of claim 1, wherein the dial knob is installed at an upper middle portion of the radome, the rotating rod is formed with a screw gear arrangement, and the movable block has a gear structure in the form of a nut that meshes with the screw gear arrangement.
 3. The antenna fixing apparatus of claim 1, wherein the dial knob is installed on a lateral side of the radome, the rotating rod is formed with a rotating gear structure, and the movable block has a linear gear structure in mesh with the rotating gear structure.
 4. The antenna fixing apparatus of claim 1, wherein the at least one hinge member of the bracket comprises an upper hinge member formed on a first upper bracket that is subordinate to the bracket, and a lower hinge member formed on a second lower bracket that is subordinate to the bracket, the linkage mechanism comprises a link that interconnects between the upper hinge member of the bracket and the movable block, pivotable joints are formed by link pins between the link and the upper hinge member of the bracket, and between the link and the movable block, respectively, and the radome is correspondingly formed with a hinge member for hinged connection with the at least one lower hinge member of the second lower bracket. 